fix infinite regress on List.invert

rakudo · Feb 28, 2015 · 6f9016e · 6f9016e
1 parent f786d89
commit 6f9016e
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/src/core/Any.pm b/src/core/Any.pm
@@ -82,8 +82,6 @@ my class Any { # declared in BOOTSTRAP
     multi method antipairs(Any:D:) { self.list.pairs }
 
     proto method invert(|) { * }
-    multi method invert(Any:U:) { ().list }
-    multi method invert(Any:D:) { self.list.invert }
 
     method squish(|c) { self.list.squish(|c) }
     method rotor(|c) { self.list.rotor(|c) }

diff --git a/src/core/List.pm b/src/core/List.pm
@@ -598,6 +598,10 @@ my class List does Positional { # declared in BOOTSTRAP
         self.values.map: { $_ => (state $)++ }
     }
 
+    multi method invert(List:D:) {
+        self.map: { .value »=>» .key }
+    }
+
     method reduce(List: &with) {
         fail('can only reduce with arity 2')
             unless &with.arity <= 2 <= &with.count;